中捷友谊农场农田景观格局演变规律分析

Analysis of farmland landscape pattern evolvement rule on Zhongjie Friendship Farm

农田景观格局关系到农田生态健康和生产力水平,该文以河北省中捷友谊农场不同时期的农田规划图与现状图为信息源,对农田景观格局动态进行描述,用景观指数对农田景观进行分析,研究了农田的斑块密度、最大斑块指数、边界密度、斑块周长面积比、斑块形状指数、分维数等景观指数及相互关系,农业生产力对其影响,揭示出农田景观格局随着自然和社会经济条件的变化,由零散变为集约,逐步构成人与自然相和谐的特征和演变规律。

The pattern of the farmland landscape is mainly related to the ecological health of farm field and the yield capacity. This paper studied the characteristics of farmland landscape indexes which include Patch Density, Largest Patch Index, Edge Density, Perimeter-Area Ratio, Landscape Shape Index, Patch Shape Index, Fractal Dimension and the relationship among these characters and the influence of the yield capacity through taking the planning maps of different times and the existing map of Zhongjie Friendship Farm in Hebei province, as the information source and describing the change of the landscape pattern and anglicizing the landscape pattern indexes. And it indicates that the landscape pattern will become intensive instead of being scattered with the change of natural and social conditions . Characters of the harmony between human beings and the nature and the evolvement rule would be formed gradually.